Explain the difference between the structure of a simple leaf and a compound leaf, and how such differences can be used within identification systems to determine the species of a plant.

Explanation:

A simple leaf is a single leaf that is never divided into smaller leaflet units. It is always attached to a twig by its stem or the petiole. A compound leaf on the other hand is divided to the midrib, forming two or more distinct blades

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

answer: if she breaths she a thho

explanation: